Embroidery-machine.



Witnesses I i 'll F. EGGE.

EMBROIDERY MACHINE.

APPLICATION FILED AUG. 16, 1913.

1,1 34,040. Patented Mar. 30, 1915.

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UNTTED STATES? PATENT OFFICE.

FREDERICK EGGE, OF BRIDG'EPORT, CONNECTICUT, ASSIGNOR TO THE AMERICAN SPECIALTY CO., 013 BRIDGEPOR'I, CONNECTICUT, A CORPORATION OF CON- NECTIGUT.

EMBROIDERY-MACHINE.

Specification of Letters Patent.

Patented Mar. 30, 1915.

Application filed August 16, 1913. Serial No. 785,039.

To all whom it may concern Be it known that I, FREDERICK Econ, a citizen of the United States, residing in the city of Bridgeport, county of F airfield, State of Connecticut, have invented certain new and useful Improvements in Embroidcry-Machines; and I do declare the following to be a full, clear, and exact descrlptlon of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention comprises improvements in embroidery machines, and has particular relation to special attachments for holding the piercer devices of embroidery machines.

The primary aim of the invention is to provide a simple and easily operated device by means of which the piercers may be readily attached to or detached from the piercer bar, and also to produce a piercer holding attachment in which any of the piercer-s may be readily shifted to an inoperative position without interfering with the operations of the other piercers or with the embroidery needles, and also without exposing the operator to the danger of injury.

In carrying out the invention as generally stated above it will be understood, of course, that the same may be embodied in various forms, one simple and practical embodiment being shown in the accompanying drawings, wherein Figure 1 is a top plan view of a piercer bar equipped with the improved piercer holding attachment. Fig. 2 is a sectional view taken on the line 22, Fig. 1. Fig. 3 is a similar view taken on the line 33, Fig. 1. Fig. 4 is a transverse sectional view taken on the line 44, Fig. 2.

Referring to the accompanying drawings by numerals, it will be observed that the improved piercer holding attachment comprises in its general organization a housing having a flat base 1 equipped with transversely extending spaced slots 2 in its free longitudinal edge portion. A side guard 3 projects at right angles from the other longitudinal edge of the base 1 and terminates in a narrow flange 4 that overhangs said base 1. The base 1, flange 4, and guard 3 form a slideway that extends longitudinally of the housing. The guard 3 is provided with a central longitudinally extending guide slot 5 through which a bolt 6 carried by a piercer carrier 7 projects. The carrier 7 is mounted in the slideway of the housing and at its outer end portion is provided with a right-angularly projecting overhanging flange 8 that has a groove 9 formed transversely therein, said flange and groove cooperating with a plate 10 that is held to the flange by an adjusting bolt 11 to form a clamp for fastening a piercer 12 to the carrler.

The carrier 7 is slidably mounted in the slideway of the housing to project or retract the piercer 12, and it is operated by means of a latch lever 13 that has one end pivotally mounted on the end of bolt 6 that projects through slot 5, the lever being held on the bolt by means of the lock nuts 14. The opposite end of the lever 13 projects well beyond the rear end of the housing and is provided with a finger grip 15. Adjacent each end the lever 13 is provided with a notch 16, the notches cooperating with a stud l7 projecting laterally from the side guard 3 to lock the lever in either a piercer retracted or projected position. A spring 18 connects the lever 13 with a stud 19 011 the carrier 7 and opposes unlocking movement of the lever.

The base 1 of the housing is detachably fastened to the piercer bar A by means of 1Elie bolts 20 that engage the slots 2 of said ase.

In Fig. 1 of the drawings, three piercer holding attachments are shown mounted on the bar A, the two upper ones having their piercers in operative positions, while the lower one has its piercer in an inoperative position.

From the foregoing description it will be clear that the lever 13 serves both as a lock and for sliding the carrier 7 to retract or project the piercer 12. The operation is indicated in Fig. 3 of the drawing, wherein dotted lines are used to show the position of lever 13 when raised to release the same from stud 17, and when in such position, by pushing the lever, the piercer will be projected forward to the operative position indicated by dotted lines, whereupon the rear notch 16 engages the stud 17 and retains the piercer in an operative position.

In embroidery machines, the needle mechanism and the piercer holding mechanism are arranged in close relation and as it frequently happens that there is a necessity to withdraw one or more of the piercers to an inoperative position, and owing to the fact that the needles and piercers are so close together, lateral movements of the piercers is practically impossible, and in order to permit one or more of the piercers to be placed in inoperative positions, this invention provides means whereby the piercers and their carriers, are moved longitudinally in their housings, such movements being obtained through the lever 13. The lever 13 is of such width that only a slight vertical movement is necessary to release it from stud 17, and the handle or finger grip 15 thereof is so disposed beyond the rear of the bar A, that in operating the lever, there is no necessity for the operator being exposed to injuries either by the needles or by the piercers.

The invention, as described, is of particular utility in connection with piercers in that it can be readily attached to piercer bars by simply boring or forming bolt holes therein, but owing to the similarity in operation of needles of embroidery machines and piercer-s, it will, of course, be obvious that the same may be used in connection with embroidery needles as well as with piercers. In this connection it should be noted that this invention possesses particular advantages in that the movements of the piercers or needles, is simply a longitudinal movement in contradistinction to well known pivotal movements, and that such movement permits the piercers or needles to be entirely housed when in inoperative positions so that their penetrating points are prevented from injuring either the material, the operator, or interfering with the operation of the other needles or piercers.

I claim as my invention 1. A piercer holding attachment for embroidery I machines comprising a housing provided with a fiat base and an upper flange forming a longitudinally extending slideway, a carrier slidable in the slideway,

a piercer mounted in the carrier, a latching lever for operating the carrier and locking the same in either a retracted or projected position, and means engaging the base for iigidly attaching the housing to a piercer 2. A piercer holding attachment for embroidery machines comprising a housing provided with a longitudinally extending guide slot, a carrier slidable longitudinally of the housing and having a pivot bolt ex tending through said slot, a piercer holder carried by the carrier, a latching lever mounted on the bolt for operating the carrier, and means carried by the housing and engaged by the lever for locking said lever.

3. A piercer holding attachment for embroidery machines comprising a housing provided with a longitudinally extending guide slot, a carrier slidable longitudinally in said housing and having a bolt extending through said slot, a piercer holder carried by the carrier, a stud projecting from the housing, and a carrier operating lever mounted on the bolt and having spaced Vnotches adapted for selective engagement with the stud. I a

4. A piercer holding attachment for embroidery machines comprising a housing provided with a longitudinally extending slideway, said housing having a longitudinally extending slot formed in one side of the slideway, a carrier mounted in the slideway and having a bolt extending through the slot, a carrier operating lever pivotally mounted on the bolt and having a handle projecting beyond the rear end of the housing, said lever being provided with spaced notches, a stud carried by the housing and adapted for selective engagement by the notches.

5. In an embroidery machine, the combi nation with a needle or piercer bar, of a carrier housing having a flat base provided with edge notches, bolts engaging said notches for detachably fastening the housing to the bar, a carrier slidable longitudinally of the housing, and means for operating and locking the carrier.

6. In an embroidery machine, the combination with a piercer or needle bar, of an upstanding carrier housing having an overhanging upper flange and a flat base, said base being rigidly but detachably'fastened to said bar, a carrier slidable longitudinally in the housing between the flange and base, piercer or needle holding means carried by the carrier, and means for operating, and

locking the carrier.

7. A piercer holding attachment for em broidery machines comprising a housing formed of a flat base, an upstanding side guard, and an overhanging flange, means,

for detachably fasteningthe housing to a piercer bar, said guard being provided'with a longitudinal slot and with a laterally projecting stud, a carrier slidably mounted in the housing and having a stud projecting through the slot, a clamp carried by the carrier, a latching and operating lever Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

